When word became public that Los Angeles Dodgers right-hander Kenley Jansen, the top closer from ESPN average live drafts and a top-five option on the Player Rater, was dealing with an irregular heartbeat and would be shelved for an undetermined amount of time, a small number of fantasy managers predictably moved on. Jansen remains rostered in 94 percent of standard leagues, but that number was down to roughly 90 percent a few days ago. After all, anything dealing with the heart sounds serious, and Jansen has bigger concerns than a drop in fastball velocity.